ABSTRACT Reference Standard Dosimeters are used to calibrate radiation environments and routine dosimeters. It can also be used in routine dosimetry applications for radiation processing where higher quality dosimetry measurements are required. Electron Spin Resonance (ESR) is a well-established Reference Standard Dosimetry system in industrial applications of ionising radiation, and its use is also proposed in radiation therapy and accident dosimetry. In the present experimental work, PGA solid state dosimeter (SSD) has been investigated using ESR spectroscopy to study the gamma radiation response of this material and to evaluate its dosimetric characteristics: dose response, room temperature fading, heat treatment effect during post-irradiation storage. Results obtained up to now confirm that PGA seems to be suitable material for ESR dosimetry applications.
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A. Mejri, H. Jelassi, K. Farah, A. Hamzaoui and H. Eleuch, "An Approach for Using of Poly Glycolic Acid (PGA) in Reference Standard Dosimetry: PGA/ESR Dosimetry System Response Curve and Post Irradiation Stability," World Journal of Nuclear Science and Technology, Vol. 2 No. 3, 2012, pp. 73-79. doi: 10.4236/wjnst.2012.23012.
 G. D. Watkins, “EPR of Defects in Semiconductors: Past, Present, Future,” Physics of the Solid State, Vol. 41, No. 5, 1999, pp. 746-750. doi:10.1134/1.1130862
 A. L. Konkin, H. K. Roth, M. Schroedner, G. A. Nazmutdinova, A. V. Aganov, T. Ida and R. R. Garipov, “TimeResolved EPR Study of Radicals from 2,2-Dimethoxy-2-Phenylacetophenone in Ethylene Glycol after Flash Photolysis,” Chemical Physics, Vol. 287, No. 3, 2003, pp. 377-389.
 M. Bennati and T. F. Prisner, “New Developments in High Field Electron Paramagnetic Resonance with Applications in Structural Biology,” Reports on Progress in Physics, Vol. 68, No. 2, 2005, p. 411.doi:10.1088/0034-4885/68/2/R05
 D. F. Regulla and U. Deffner, “Dosimetry by ESR Spectroscopy of Alanine,” The International Journal of Applied Radiation and Isotopes, Vol. 33, No. 11, 1982, pp. 1101-1114.
 M. Ikeya, “New Applications of Electron Spin Resonance: Dating, Dosimetry, and Microscopy,” World Scientific Publishing, Singapore, 1993.
 T. Kjima and R. Tnaka, “Polymer-Alanine Dosimeter and Compact Reader,” International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, Vol. 40, No. 10-12, 1989, pp. 851-857.doi:10.1016/0883-2889(89)90006-3
 S. P. Dias, A. M. Rossi, R. T. Lopes and E. F. O. de Jsus, “Evaluationof Dosimetric Properties of Paramagnetic Centers Formed in Gamma Irradiated Polymers,” Radiation Protection Dosimetry, Vol. 85, No. 1-4, 1999, pp. 463-468.
 V. Gancheva, E. Sagstuen and N. D.Yordanov, “Study on the EPR/Dosimetric Properties of Some Substituted Alanines,” Radiation Physics and Chemistry, Vol. 75, No. 2, 2006, pp. 329-335.
 G. M. Hassan and M. A. Sharaf, “EPR Dosimetric Properties of Some Biomineral Materials,” Applied Radiation and Isotopes, Vol. 62, No. 2, 2005, pp. 375-381.doi:10.1016/j.apradiso.2004.08.013
 A. Lund, S. Olsson, M. Bonora, E. Lund and H. Gustafsson, “New Materials for ESR Dosimetry,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Vol. 58, No. 6, 2002, pp. 1301-1311.doi:10.1016/S1386-1425(01)00719-3
 E. Lund, H. Gustafsson, M. Danilczuk, M. D. Sastry, A. Lund, T. A. Vestad, E. Malinen, E. O. Hole and E. Sagstuen, “Formates and Dithionates: Sensitive EPRDosimeter Materials for Radiation Therapy,” Applied Radiation and Isotopes, Vol. 62, No. 2, 2005, pp. 317-324. doi:10.1016/j.apradiso.2004.08.015
 V. Gancheva, E. Sagstuen and N. D. Yordanov, “Study on the EPR/Dosimetric Properties of Some Substituted Alanines,” Radiation Physics and Chemistry,Vol. 75, No. 2, 2006, pp. 329-335.doi:10.1016/j.radphyschem.2005.03.009
 A. Babanalbandi, D. J. T. Hill, J. H. O’Donnell and P. J. Pomery, “An Electron Spin Resonance Analysis on YIrradiated Poly (Glycolic Acid) and Its Copolymers with Lactic Acid,” Polymer Degradation and Stability, Vol. 52, No. 1, 1996, pp. 59-61.doi:10.1016/0141-3910(95)00230-8
 R. K. Kulkarni, K. C. Pani, C. Neuman and F. Leonard, “Polylactic Acid for Surgical Implants,” US National Technical Information Service, AD Report No. 636716, 1966, pp. 1-17.
 D. E. Cutright, J. M. Brady, R. A. Miller and M. A. J. Willis, “Systemic Mercury Levels Caused by Inhaling Mist during High-Speed Amalgam Grinding,” Journal of Oral Medicine, Vol. 28, No.4, 1973, pp. 100-104.
 B. Engin, C. Aydas and H. Demirtas, “ESR Dosimetric Properties of Window Glass,” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 243, No. 1, 2006, pp. 149-155. doi:10.1016/j.nimb.2005.08.151
 A. de A. Rodrigues Jr. and L. V. E. Caldas, “Commercial Plate Window Glass Tested as a Routine Dosimeter at a Gamma Irradiation Facility,” Radiation Physics and Chemistry, Vol. 63, No. 3-6, 2002, pp. 765-767.doi:10.1016/S0969-806X(01)00637-5
 K. Farah, T. Jerbi, F. Kuntz and A. Kovacs, “Dose Measurements for Characterization of a Semi-Industrial Cobalt-60 Gamma-Irradiation Facility,” Radiation Measurements, Vol. 41, No. 2, 2006, pp. 201-208.doi:10.1016/j.radmeas.2005.03.003
 J. A. Weil and J. R. Bolton, “Electron Paramagnetic Resonance: Elementary Theory and Practical Applications,” 2nd Edition, John Wiley & Sons, Hoboken, 2007.
 A. G. Hausberger, R. A. Kenley and P. P. DeLuca, “Gamma Irradiation Effects on Molecular Weight and in Vitro Degradation of Poly (D, L-Lactide-Co-Glycolide) Microparticles,” Pharmaceutical Research, Vol. 12, No. 6, 1995, pp. 851-856. doi:10.1023/A:1016256903322
 M. B. Sintzel, A. Merkli, C. Tabatabay and R. Gurney, “Influence of Irradiation Sterilization on Polymers Used as Drug Carriers—A Review,” Drug Development and Industrial Pharmacy, Vol. 23, No. 9, 1997, pp. 857-879. doi:10.3109/03639049709148693
 L. Montanari, M. Constantani, E. Ciranni-Signoretti, L. Valvo, M. Santucci, M. Barolomei, P. Fattibene, S. Onori, A. Faucitano, B. Conti and I. Genta, “Gamma Irradiation Effects on Poly (DL-Lactide-Co-Glycolide) Microspheres,” Journal of Controlled Release, Vol. 56, No. 1-3, 1998, pp. 219-229. doi:10.1016/S0168-3659(98)00082-0